<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script src="jquery-1.7.2.js"></script>
	</head>
	<body>
		<ul class="dom-ul" id="uls">
			<li class="dom-li">test1</li>
			<li class="dom-li">test2</li>
			<li class="dom-li">test3</li>
			<li class="dom-li">test4</li>
			<li class="dom-li">test5</li>
		</ul>
	</body>
	<script type="text/javascript">
		
		jQuery('.dom-li').css("background","red");
		console.log(jQuery('.dom-li'));
	</script>
</html>
